Pattern matching for Rails applications

Introspects a Rails app's models, associations, and columns, then generates a single self-contained HTML file with an interactive entity-relationship diagram.

Patching rails include/select/virtual attributes issue ( https://github.com/rails/rails/issues/15185 )

This is an ActiveRecord integration for the SQL prettifier gem niceql.

Ruby Amazon Web Services Cloud Search Interface

Searchlogic makes using ActiveRecord named scopes easier and less repetitive.

RecordFilter is a Pure-ruby criteria API for building complex queries in ActiveRecord. It supports queries that are built on the fly as well as named filters that can be added to objects and chained to create complex queries. It also gets rid of the nasty hard-coded SQL that shows up in most ActiveRecord code with a clean API that makes queries simple and intuitive to build.

Fast and unobtrusive activity tracking of ActiveRecord models using DataMapper and Redis

Return struct results from ActiveRecord relation queries

Provides a relational feature to your Rails application.

Model serialization, paging, side-loading and filtering

When you write a web API, you make a promise to the world. RSpec API helps you keep your promise.

ruby-ensembl-api provides a ruby API to the Ensembl databases (http://www.ensembl.org)

Provide a language server implementation for ruby in ruby. See https://microsoft.github.io/language-server-protocol/ "A Language Server is meant to provide the language-specific smarts and communicate with development tools over a protocol that enables inter-process communication."

SafeFinder lets you define model's null_object through simple DSL, and returns it when you can't find a result.

In an ActiveRecord migration, set the default to create a foreign key and index for all columns that define relatoins.

Adds useful accessors to ActiveRecord's Column object.

Adds support for enum data types in ActiveRecord

Extended support for foreign key constraints in ActiveRecord, including: definition as column attribute; deferrable; and SQLite3 support; cleaner dumps; and more!

DCI (data, context and interaction) for Ruby / Rails / ActiveRecord